I would like to start using a Bible Software on my MacBook Pro to help with my seminary studies. Other than needing the software to work with Mac I also need it to be free or very close to free. I know the purchase options (which are out of my budget) are LOGOS, Accordance, and Bible Works; but what are the free options? What do you recommend? What do you use? Along with the recommendations where can I get add ons for the program you recommend?